Introduction - If you have any usage issues, please Google them yourself
This procedure for symbolic computation program, since the variables x, the derivative can be recycled many times, the program consists of three parts reduction, dfferentiate and check. Reduction part of the role is to carry out the input function expression simplification differentiate part of the role is a function of the input expression derivation Check part of the role is a function of the input expressions in parentheses are added, as well as simplification correction